Wind turbine
a wind turbine and turbine blade technology, applied in the direction of electric generator control, vessel construction, marine propulsion, etc., can solve the problem of dangerous access to the hub, and achieve the effect of reasonable bearing cos
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[0018]A yaw bearing 22 is mounted on a tower 23. In the shown embodiment the tower 23 is a cylindrical or slightly conical pipe which is mounted on a foundation. The tower 23 can have different shapes such as a truss. The yaw bearing 22 supports a cylindrical shell 24 which is coupled via a connecting flange 28 to an outer shell 9 of a nacelle 29. The cylindrical shell 24 has a height of approximately 2 meter, so that above the yaw bearing 22 there is sufficient room for an operator to stand. In the cylindrical shell 24 a yaw drive 25 is mounted on gear teeth that are part of the yaw bearing 22 for rotating the nacelle 29 so that a rotation axis 33 of a hub 3 with blades 5 can be directed in the direction of the wind that drives the blades 5 of the wind turbine. The cylindrical shell 24 and / or the connecting flange 28 have a diameter that is more than 50% or approximately 60% of the diameter of the outer shell 9, so that the cylindrical shell 24 and / or the connecting flange 28 stiff...
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